Paper dust-receiving bag for vacuum cleaning machines



Sept. 25 1923.. 1,468,719

R. M. LANGDON PAPER DUST RECEIVING BAG FOR VACUUM CLEANING MACHINES Filed Dec. 13, 1921 Emma;

Rah/"Z M Z anydm Siqhis v Patented Sept. 25, 1923.

nonnn'r m. LANGDON, or ENGLEWOOD cmrrs, n JERSEY.

PAPER DUST-RECEIVING BAG FOR VACUUM CLEANING MACHINES.

Application filed December 13, 1921. Serial No.-521,991.

To all whom it mail concern:

Be it known that I, ROBERT M. LANGDON, a citizen of the United States, and residing at Englewood Cliffs, in thecounty ofBergen and State of New Jersey, have invented certain new and useful Improvements in'Paper Dust-Receiving Bags for Vacuum Cleaning Machines, of which the following is a speci- -fication, such as will enable those skilled in the'zart to which it appertains to make and use the same.

This invention relates to vacuum cleaning machines and particularly machines of this class of the household type, and the invention consists in the use of a bag composed of paper or other inexpensive material whereby when such bag is filled or partially filled with dust the same may be removed from the machine and thrown away and a new bag substituted, and the object of the invention is to provide a bag of the class and for the purpose specified which is com posed of such material as to permit of the passage of air therethrou h but which will retain dust, dirt and the like therein; a further object being to provide a bag of the class and for the purpose specified which is simple in construction and efiicient in use.

The invention is fully disclosedin the following specification, of which the accom: panying drawing forms a part, in which the separate parts my improvement are designated by suitable reference characters in each of the views, and in which Fig.1 is a diagrammatic view indicating a vacuum cleaning machine with my improfied bag mounted in connection therewit Fig. 2 a detail sectional view at right angles to that shown in Fig. 1 of the draw- 1 r v p 3 a plan view of one part or blank from which the bag is formed; and,

Fig. 4 apartial section on the line 4--4' of Fig. 1 on: an enlarged scale.

In Fig. 1 of thedrawing I'have indicated in dotted lines at 5 a vacuum cleaning stand the air pressure an also composed ofv such material as to permit the assage of air therethrough as with the use oi clqth bags.

The paper bag 5 may be made in any de-. sired manner but in the construction shown I have indicated at 8 in Fig. .3 a blank of one-half of the .paper' bag, in other words, two blanks approximatel similar to the blank 8 maybe employe and secured together by a suitable adhesive as indicated at 9 on one or both of the blanks, or the side edges thereof, or said blanks may be secured together in any desired manner. The blank 8 comprises a large central body 10 contracted slightly at one end as shown at 11 and with a greater contracted or neck portion 12 at the other end provided with a V- shaped extension 13, and after the separate blanks have been secured together to form a bag open at both ends the projecting portions 13 are folded inwardly into the contracted neck portion 12 of the bag as shown in Figs. land 2, and it will be noted that part of the neckrtion 12 is folded backwardly upon itse f as shown'at 1a in said figures, and a suitableclamp or ring 15 is passed around the neck .portion' 12 of the bag to detachably clamp the neck portion of the bag to the pipe 6, as clearly shown in Fi 1 and f the drawing. The clamping 0 the neck portion 12 of the bag to the pipe 6 may be done in the usual or any desired manner.

The end portion 11 of the completed bag is folded backwardly upon itself as shown at 16 in Fig. etof the drawing, and an eyelet 17 is passed through the folded portion thereof, centrally thereof, as indicated in Figs. 1 and 2 whereby the usual chain 18 .mounted upon the handle 19 of the machine may be detachably connected with the bag for supporting the same in proper position in the use of the machine as is the custom in the use of cloth bagswith machines of this class. v

The projecting members 13 in the neck portion 12 of the bag operate in the manner of valves to permit of the passage of air and dust into the bag in the operation of the machine, but when the machine ceases'to operate. these members will fall together or one upon another to close the communication between the bag and the machineproper and prevent the dust blown into the bag from passing backwardly into the machine.

It is the present custom to employ in' machines of the class specified cloth bags which are expensive in their construction and form a permanent part of the machine and when such bags are filled or partially filled with dust they are detached from the machines and the dust is removed by open-' ing the upper end portion thereof and shaking or otherwise agitating the bag to. discharge the dust therefrom, but there is a very objectionable feature in that the dust will fly about and upon the operator in this operation whether the operation is 'performed within the house or out of doors and if such operation is performed within the house this dust flies around and collects upon the various articles of furniture and the like in the room, and it is the object of my invention to provide a very inexpensive bag which will operate in all respects to and similar to the cloth bags commonly employed, and which when filled, or partially filled, may be detached from the machine and thrown away with the dust contained therein, and a new bag will be then substituted for the old one and the machines will be again ready for use and, in view of the fact that these bags can be made to sell for a few cents a piece and also, in view of the fact, that it takes considerable time to fill, or partially fill, the bag in the average use of household machines, the total cost of purchasing paper bags for the machinewould amount to little or nothing when the convenience and 'practicability of the paper bag are taken into consideration, and it must also be understood that the cost of manufacturing or the selling prices of the complete machine with paper bags substituted for the usual cloth bag will also be a material saving to the purchaser as the said cloth bags now in use are expensive in construction by reason of the provision of clamps at the upper'end of the bag and metal rings at the 'lower ends thereof.

It will be understood that I am not necessarily limited to the use of my improved paper bags in connection with machines of any specific form and construction, nor am I limited to any specific method of making the said bag, and various changes in and modifications of the construction herein shown and described may be made, within the scope of the appended claims,without departing from the spirit of my invention or sacrificing its advantages.

Having fully described my inventiomwhat I claim as new and desire to secure by LettersPatent, is a 1. A dust and dirt receiving bag for household vacuum cleaning machines, said bag being provided at one end with a contracted neck adapted to be clamped upon the machine and the other end of said ba be ing closed by folding the material 0 the bag upon itself, the neck portion of the bag being provided with inwardly directed V-shaped members adapted to revent the passage of dust or dirt backwar ly into the machine, when said machine is not in operat1on.

of two similar sheets of suitable material reduced at the opposite ends thereof, and one of said ends being provided with ,projecting V-shaped members, and said sheets being adapted to be placed one upon the other and secured together at the opposite side edges thereof to form said bag, said projecting V-shaped members being adapted to be extended intothe adjacent end portions of the bag.

3. A bag of the class described composed of two similar sheets of suitable material reduced at the opposite ends thereof, and one of said ends being provided with projeoting V-shaped members, and said sheets being adapted to be placed one upon the other and secured. together at the opposite side edges thereof to form said bag, said projecting V-shaped members being adapted to be extended into the adjacent end portions of the bag, and the other end portion of the bag being folded upon itself to form a closed end for said bag.

4. A bag of the class described composed of two similar sheets of suitable material reduced at the opposite ends thereof, and one of said ends bein provided with projecting V-shaped men'ibers, and said sheets being adapted to be placed one upon the other and secured together at the opposite side edges thereof to form said bag, said projecting V-shaped members being adapted to be extended into the adjacent end portions of the bag, and the other end portion of the bag being folded upon itself to form a closed end for said bag and an eyelet passed through said folds. V

In testimony that I claim the foregoing as my invention I have signed my name this 10th day of December 1921.

. ROBERT M. LANGDON.

2. A bag of the classdescribed composed 

